Color
#15575b
#15575brgb(21, 87, 91)hsl(183, 63%, 22%)oklch(0.419 0.064 201)Colors that go with #15575b
Crimson, Blue and Cadet Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Crimson #dc143c
complementaryshippedCrimson sits directly opposite #15575b on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blue #0000ff
shipped8 real palettes, including Jeep's brand system and Rolex's brand system put Blue beside #15575b, as the accent.
Cadet Blue #5f9ea0
shippedDesigners have shipped Cadet Blue with #15575b: 4 real palettes, including Paper & Pine and Open House, as the supporting colour.
Copper #b87333
shippedDesigners have shipped Copper with #15575b: 4 real palettes, including Desert Road and Dusk, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #15575b: 8 real palettes, including Hinge's brand system and Jack Daniel's's brand system, as the accent.
Emerald Green #50c878
shippedEmerald Green is paired with #15575b in 5 real palettes, including Neon's brand system and Chime's brand system, as the lead colour.
Goldenrod #daa520
shippedGoldenrod shows up next to #15575b in 5 real palettes, including Fireside and Disney's brand system, as the accent.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #15575b: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #15575b
Tints & shades
Harmonies
Contrast
| #15575b as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 8.25:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.55:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #15575b as the background.
Brands using this color
Fonts for this mood
#15575b reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #15575b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/15575b-a2b9be-d4598e-1f262d-e9f1ee?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md